Q1. The SPD tool doesn’t detect my phone. What should I do?

Reinstall the SPD drivers, try a different USB port/cable, and make sure the phone is powered off before connecting.

Q2. Will this firmware fix my “No SIM / No Network” issue?

If the issue is caused by corrupted modem software, yes. However, if your IMEI is erased, you’ll need to restore it with a tool like WriteIMEI or Miracle Box.

Q3. My phone shows “NV Data Corrupt” after flashing. How do I fix it?

This means the NVRAM/NVDATA partition is corrupted. Reflash the PAC file again with “Erase All Flash” option or repair IMEI/NVRAM using SPD WriteIMEI tools.

Archos 50b Platinum 4G Stock Firmware (Flash File)

The Archos 50b Platinum 4G is an entry-level smartphone released in early 2017, powered by the Spreadtrum SC9832A chipset and running Android 6.0 Marshmallow. If your device is stuck in a bootloop, showing system errors, or bricked due to a failed update, you can restore it to working condition by flashing the official stock firmware using the SPD Upgrade Tool.

⚠️ CRUCIAL WARNING:
This device is based on the UNISOC/Spreadtrum SC9832A platform. Attempting to flash it with MediaTek or Qualcomm tools will not work and can hard-brick the phone. Use only the SPD Upgrade Tool with the correct firmware file provided below.

⚙️ Prerequisites Before Flashing

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Backup Data: All files on internal storage will be erased.
Battery Charge: Ensure at least 50% charge to prevent shutdowns.
Windows PC: Flashing requires a Windows computer and a USB cable.
Spreadtrum Drivers: Install SPD/Unisoc USB drivers for proper device detection.

📱 Quick Device Specifications

Device: Archos 50b Platinum 4G
Release Year: 2017
Chipset: Spreadtrum SC9832A
Display: 5.0-inch IPS LCD (1280 × 720 px)
Battery: 2100 mAh
Operating System: Android 6.0 Marshmallow
RAM / Storage: 1GB RAM / 8GB ROM

🛠 Required Tools & Drivers

Tool / Driver	Download Link
SPD/Unisoc USB Drivers	Download Drivers
SPD Upgrade Tool	Download Tool

⬇️ Archos 50b Platinum 4G Stock Firmware

Model	Android	Chipset	Type	Download	Size
50b Platinum 4G	6.0 Marshmallow	Spreadtrum SC9832A	SPD Flash File (PAC)	MediaFire	~1.3 GB

⚡ Quick Flashing Guide (SPD Upgrade Tool)

Download and install SPD/Unisoc USB drivers on your PC.
Extract the firmware (Archos_50b_Platinum_4G_SC9832A_170120_6.0_SPD.zip) and the SPD Upgrade Tool.
Launch UpgradeDownload.exe (or ResearchDownload.exe).
Click the Load Packet button and select the .pac file from the extracted firmware folder.
Click Start Downloading and then connect your powered-off phone to the PC via USB.
The flashing process will begin automatically. Once it shows “Passed,” disconnect and reboot the phone.

👉 For full detailed steps with screenshots, refer to our guide:
How to Flash Firmware with SPD Upgrade Tool

❓ Frequently Asked Questions (FAQs)

Q1. The SPD tool doesn’t detect my phone. What should I do?: Reinstall the SPD drivers, try a different USB port/cable, and make sure the phone is powered off before connecting.
Q2. Will this firmware fix my “No SIM / No Network” issue?: If the issue is caused by corrupted modem software, yes. However, if your IMEI is erased, you’ll need to restore it with a tool like WriteIMEI or Miracle Box.
Q3. My phone shows “NV Data Corrupt” after flashing. How do I fix it?: This means the NVRAM/NVDATA partition is corrupted. Reflash the PAC file again with “Erase All Flash” option or repair IMEI/NVRAM using SPD WriteIMEI tools.

🔧 Device-Specific Troubleshooting

Stuck on Archos Logo After Flash: Perform a factory reset from recovery mode.
Download Fails at 0%: Ensure correct PAC file is loaded and try a different SPD Upgrade Tool version.
Reboot Loop After Flashing: Reflash with “Erase All” option enabled in the SPD tool to fully wipe corrupted partitions.
Invalid IMEI: Use a WriteIMEI tool to restore the original IMEI printed on your device.